ISL6540A Datasheet, PDF (6/22 Pages) Intersil Corporation – Single-Phase Buck PWM Controller with Integrated High Speed MOSFET Driver and Pre-Biased Load Capability

ISL6540A
Absolute Maximum Ratings
Input Voltage, VIN, VFF, HSOC . . . . . . . . . . . . . . . . -0.3V to +22.0V
Driver Bias Voltage, PVCC . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
Signal Bias Voltage, VCC . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
BOOT Voltage, V_BOOT . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +36V
BOOT to PHASE Voltage (V_BOOT-V_PHASE) . . . . . -0.3V to 7V (DC)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 9V (<10ns)
PHASE Voltage, V_PHASE . . . . . . . . . V_BOOT - 7V to V_BOOT + 0.3V
. . . . . . . . . . . . . . . . . . . . . .V_BOOT - 9V (<10ns) to V_BOOT + 0.3V
UGATE Voltage . . . . . . . . . . . . . . . . V_PHASE - 0.3V (DC) to V_BOOT
V_PHASE - 5V (<20ns Pulse Width, 10µJ) to V_BOOT
LGATE Voltage . . . . . . . . . . . . . . . GND - 0.3V (DC) to VCC + 0.3V
GND - 2.5V (<20ns Pulse Width, 5µJ) to VCC + 0.3V
Other Input or Output Voltages . . . . . . . . . . . . . -0.3V to VCC +0.3V
Thermal Information
Thermal Resistance (Notes 1, 2)
θ_JA (°C/W) θ_JC (°C/W)
QFN Package . . . . . . . . . . . . . . . . . 32
5
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
Input Voltage, VIN, VFF . . . . . . . . . . . . . . . . . . . . 3.3V to 20V ±10%
Driver Bias Voltage, PVCC . . . . . . . . . . . . . . . . . . . . . . 2.9V to 5.5V
Signal Bias Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . 2.9V to 5.5V
Boot to Phase Voltage (Overcharged), V_BOOT - V_PHASE . . . . . .<6V
Ambient Temperature Range. . . . . . . . . . . . . . . . . . .-40°C to +85°C
Junction Temperature Range. . . . . . . . . . . . . . . . . .-40°C to +125°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
1. θ_JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features.
2. θ_JC, "case temperature" location is at the center of the package underside exposed pad. See Tech Brief TB379 for details.
3. Limits should be considered typical and are not production tested.
Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted. Parts are 100% tested at +25°C. Temperature
limits established by characterization and are not production tested.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNITS
INPUT SUPPLY CURRENTS
I_VCC
Nominal VCC Supply Current
VIN = VCC = PVCC = 5V, Fs = 600kHz,
UGATE and LGATE Open
-
8
13
mA
I_PVCC
Nominal PVCC Supply Current VIN = VCC = PVCC = 5V; Fs = 600kHz,
UGATE and LGATE Open
-
3
4
mA
I_VIN
Nominal VIN Supply Current
VIN = VCC = PVCC = 5V; Fs = 600kHz,
UGATE and LGATE Open
-
0.5
1
mA
I_{VCC_S}
Shutdown VCC Supply Current EN = 0V, VCC = PVCC = VIN = 5V
I_{PVCC_S} Shutdown PVCC Supply Current EN = 0V, VCC = PVCC = VIN = 5V
I_{VIN_S}
Shutdown VIN Supply Current EN = 0V, VCC = PVCC = VIN = 5V
POWER-ON RESET
-
3
4
mA
-
1
2
mA
-
0.5
1
mA
POR_{VCC_R}
POR_{VCC_F}
POR_{VCC_H}
POR_{PVCC_R}
POR_{PVCC_F}
POR_{PVCC_H}
POR_{VFF_R}
POR_{VFF_F}
POR_{VFF_H}
ENABLE
Rising VCC Threshold
Falling VCC Threshold
VCC Hysterisis
Rising PVCC Threshold
Falling PVCC Threshold
PVCC Hysterisis
Rising VFF Threshold
Falling VFF Threshold
VFF Hysterisis
2.79
-
2.59
-
187
215
2.79
-
2.59
-
193
215
1.48
-
1.35
-
127
137
2.89
V
2.69
V
250
mV
2.91
V
2.70
V
250
mV
1.54
V
1.41
V
146
mV
V_{EN_REF}
I_{EN_HYS}
V_EN
Input Reference Voltage
Hysteresis Source Current
Maximum Input Voltage
0.485
0.500
0.515
V
7.5
10
11.5
µA
-
VCC + 0.3
-
V
6
FN6288.5
October 7, 2008